Here’s some not so light coffee time reading on IPv6 – IPv6 non-alternatives: DJB’s article, 13 years later – an article that links, among other things to this Ars Technica article, which features some IPv6 statistics. Summary? Sure. IPv6 RFC celebrates 20 year birthday this month with 10% global penetration.
Exponential growth year-on-year is good. But the absolute numbers aren’t so bright yet. Especially considering some of the areas where it wasn’t so successful.